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Table 1

Basic information about the observations of the used spectra.

Objecta Typeb Periodc Telescoped Aperturee Linef Continuumg No.h Referencei

NGC 5548 Seyfert 1 1996–2002 SAO, GHAO, OAN-SPM 4.2′′ × 19.8′′ Hα 5100 Å 23 1
Hβ 5100 Å 81
NGC 4151 Seyfert 1 1996–2006 SAO, GHAO, OAN-SPM 2.0′′ × 6.0′′ Hα 5100 Å 137 2
Hβ 5100 Å 181
3C 390.3 DPL 1995–2007 SAO, GHAO, OAN-SPM 2.0′′ × 6.0′′ Hβ 5100 Å 128 3
Arp 102B DPL 1987–2013 SAO, GHAO, OAN-SPM, CA 2.5′′ × 6.0′′ Hα 6200 Å 88 4
Hβ 5100 Å 116
Ark 564 NLSy1 1999–2010 SAO, GHAO, OAN-SPM 2.5′′ × 6.0′′ Hα 6200 Å 50 5
Hβ 5100 Å 91
E1821+643 quasar 1990–2014 SAO, GHAO, CA 2′′ × 6.0′′ Hβ 5100 Å 127 6

Notes.Columns:

(a)

Object name;

(b)

AGN type;

(c)

Monitored period;

(d)

Telescope used (SAO – 6 m and 1m telescopes of Special Astrophysical Observatory; GHAO – 2.1 m telescope of Guillermo Haro Astrophysical Observatory; OAN-SPM – 2.1 m telescope of the Observatorio Astronómico Nacional at San Pedro Martir; and CA – 3.5 m and 2.2 m telescopes of Calar Alto);

(e)

Projected spectrograph entrance apertures (slit width×slit length in arcsec);

(f)

E mission line;

(g)

Continuum;

(h)

Number of spectra;

(i)

Reference from which line and continuum fluxes are taken.

Reference. (1) Shapovalova et al. (2004); (2) Shapovalova et al. (2008); (3) Shapovalova et al. (2010a); (4) Shapovalova et al. (2013); (5) Shapovalova et al. (2012); (6) Shapovalova et al. (2016).

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